Cadime, Irene, Carla  Silva, Sandra  Santos, Iolanda  Ribeiro, and Fernanda Leopoldina Viana. ?The Interrelatedness Between Infants? Communicative Gestures And Lexicon Size: A Longitudinal Study?. Infant Behavior And Development  48. Infant Behavior And Development   (2017): 88-97. doi:10.1016/j.infbeh.2017.05.005. .